Adder Technology AdderView CATx EPS-S8 - Manual (Page 20)

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9
3. Connect.the.other.end.of.the.cascade.
link.cable.to.one.of.the. CATx USER PORTS .
sockets.on.the.rear.panel.of.the.lower.
unit..Due.to.the.way.in.which.ports.
within.a.link.group.are.dynamically.
allocated,.it.is.not.usually.important.
exactly.which.user.port.is.
connected.to.each.computer.
port.of.the.upper.unit.
4. Repeat.steps.2.and.3.
for.each.of.the.links.
within.the.group,.
adhering.to.the.
Group numbering
diagram
.for.
the.correct.link.group.
boundaries.on.the.
COMPUTER
CONNECTIONS .ports.of.the.upper.switch.
Once.the.AdderView.CATx.units.and.computers.have.been.connected,.you.can.
edit.their.names.to.make.it.much.easier.to.locate.them..See.the.
To create/edit
computer names .section.in.the.Configuration.chapter.for.more.details.
Connecting AdderView CATx units in cascade
Please.consider.the.following.when.making.cascade.connections.between.
AdderView.CATx.units.
Tips for successful cascading
•. The.maximum.number.of.levels.for.a.cascade.is.three.
•. The.maximum.number.of.computer.systems.that.can.be.controlled.within.
a.cascade.installation.depends.upon.the.AdderView.CATx.unit.placed.at.
the.top.level..If.the.top.level.unit.is.a.non-IP.version,.a.maximum.of.512.
computer.systems.can.be.controlled..However,.if.the.top.level.unit.is.an.
AdderView.CATx.IP,.the.maximum.number.of.computers.drops.to.128..This.
is.due.to.the.extra.burden.placed.on.the.unit’s.memory.of.administering.
global.(IP).users..
•. The.number.of.links.between.units.determines.the.number.of.users.that.can.
simultaneously.access.the.computers.situated.further.down.the.tree..Link.
groups.of.one.and.two.links.should.be.discouraged.
•. Ensure.that.cascade.links.(within.a.group).between.units.are.approximately.
the.same.length.
•. Triple.and.quad.link.groups.may.be.mixed.on.one.unit.providing.the.
links.lie.within.the.appropriate.port.boundaries.designated.in.the. Group
numbering diagram .
•. AdderView.CATx. IP.models.should.only.be.used.at.the.top.level.of.the.
cascade.tree.because.they.have.only.two. CATx USER PORTS .sockets..
•. For.each.cascade.link,.use.a.standard.category.5,.5e.or.6.twisted-pair.cable,.
terminated.at.each.end.with.an.RJ45.connector..There.must.be.no.crossover.
connections.within.the.cable,.i.e..do.not.use.patch.cables..The.cascade.link.
cables.can.be.up.to.50m.(160.feet).in.length..However,.remember.that.
the.overall.length.between.any.remote.user.(via.an.X100.extender).and.
any.computer.(via.a.CAM).must.not.exceed.300m.(980.feet).-.that.figure.
includes.the.cascade.link.cables..Ensure.that.each.of.the.links.within.a.
cascade.group.all.conform.to.the.same.length.
•. The.procedure.given.opposite.may.be.carried.out.in.any.order.but.for.clarity.
the.instruction.will.begin.at.the.higher.level.AdderView.CATx.unit.(here.
called.the.upper unit),.i.e..the.one.that.is.being.fed.into.by.a.unit.at.the.
cascade.level.below.(here.called.the.lower unit)..The.procedure.remains.the.
same.regardless.of.exactly.which.cascade.levels.are.being.connected..The.
basic.rule.is.that.each.link.is.made.by.connecting.a.
COMPUTER CONNECTIONS .
port.of.the.upper.switch.to.a. CATx USER PORTS .of.the.lower.switch.
To connect units in cascade
1. Ensure.that.power.is.disconnected.from.the.AdderView.CATx.and.all.other.
units.to.be.connected....
2. Connect.one.end.of.each.
cascade.link.cable.to.an.
appropriate.
COMPUTER
CONNECTIONS .port.on.the.rear.
panel.of.the.upper.unit..Refer.
to.the.
Group numbering
diagram .for.the.correct.link.
group.boundaries.
See also
•. Testing specific links to cascaded computers